Fountain marking-brush



(NoModeL) J. B. HARRIS. FOUNTAIN MARKING BRUSH.

No. 438.622. Patented Oct. 21, 1890.

UNITED STATES PATENT OFFICE.

JOHN BROWVN HARRIS, OF EUTANV, ALABAMA.

FOUNTAIN MARKING-BRUSH.

SPECIFICATION forming part of Letters Patent No. 438,622, dated October21, 1890. Application filed February 21, 1890. Serial No. 341,275. (Nomodel.)

To all whom it may concern.-

Be it known that I, J OHN BROWN HARRIS, a citizen of the United States,residing at Eutaw, in the county of Greene and State of Alabama, haveinvented certain new and useful Improvements in FountainMarking-Brushes; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to that class of devices known as fountainmarking-brushes, and it has for its object to produce amore simple,cheap, and compact article than has hitherto been in vogue.

With this end in view my invention consists in certain peculiarities ofconstruction and combinations of parts, more fully describedhereinafter, and particularly pointed out in the claims.

Referring to the accompanying drawings, making part of thisspecification, Figure 1 is a side elevation of my complete device; Fig.2, a longitudinal section; and Figs. 3 and4. de- 1t{ail views of thepiston-rod, brush-bit, and

The body portion of the device consists of a hollow metallic cylinder orbarrel A, having a downwardly-curved rear end or, provided with outsidethreads on its lower extremity, by means of which the bulb B is screwedonto the barrel. This bulb is made of rubber or other suitable elasticmaterial, and its neck b is provided with a metal ring I), having insidethreads, which engage those in the lower end a of the barrel. A rigidmetal rim or band E extends from said ring entirely around the bulb andserves as a handle by means of which the brush is manipulated.

The elastic bulb B serves as a reservoir for the fluid, which isintroduced through a perforation c in the top of the barrel, saidperforation being closed by a suitable screw-cap cl.

Intermediate of the cap 01 and the bulb B the barrel is provided with aprojection (2, having a threaded aperture (5, in which fits a screw-plugF, a stuffing-box F being left to be filled with leather or othersuitable bushmg.

Through the plug F and barrel A a perforation 9 extends, and throughthis perforation passes the piston-rod O, which is provided on its rearend with a thumb-piece D, and is of sufficientlength so that when pushedhome-that is, until the thumb-piece D engages the shoulder of thescrew-plugits outer end will project from the outer end of the barrel.This outer end is provided with a transverse slot or key-hole 72.,through which is inserted a corresponding key 2', having a length equalto the inner diameter of the barrel. The bit consists of a hollowcylindrical portion m, from the outer end of which extends a taperingshoulder a, from which projects a reduced portion or brush-point 0. Thisreduced portion or point 0 is ridged at 0' and the brush E securelybound or wrapped upon it, the ridges serving to more surely hold thehairs of the latter in place and prevent them from slipping 01f. Asupply-perforation 10 extends through the point 0 and opens into thecenter of the brush, and openings r are also made in the taperingshoulder a, through which the fluid flows.

The barrel A is provided the greatest part of its length with femalethreads g on its inside surface, and the bit has corresponding malethreads 5 on the outside surface of its cylindrical portion m, which isalso provided with registering apertures or key-holes m on its oppositesides, for a purpose hereinafter set forth.

The preferred construction of my invention having been set forth, I willnow proceed to describe the manner in which it is used. The elastic bulbor reservoir B is filled with the desired fluid by removing the cap (1and introducing the liquid through the perforation 0. The piston-rod Cis pushed forward to its farthest extent and its front end will thereproject from the muzzle of the barrel. The key 2 is now removed from thekey-hole h, and the bit inserted on the end of the piston-rod until theapertures 11?. register with the opening it in the piston-rod. The key71 is now inserted through all three of the keyholes, and when shovedhome its opposite ends will lie flush with the outer surface of the bit.The latter is next pushed into the muzzle of the barrel, and at the sametime the piston-rod O is turned back-that is, to the left -by use of thethumb-piece, when the threads of the bit will engage those of thebarrel, and the bit can be secured back into the latter as far. asdesired.

Vthen using the device in a horizontal position or when markingoverhead, the bulb B is squeezed and the fluid thus ejected, when itwill be forced through the barrel into the bit and through theperforations 13 1* into the outer end of the same into the brush E.

When marking with the brush-point downward, the tendency to form avacuum prevents the fluid from flowing too freely through the barrel. 3

All sizes of brush-points can be used, it only being necessary that theyhave a standard size body portion, so that the threads on the same willengage those of the barrel, and long brushescan be applied equally aswell i as short ones, as-the barrel will confine the a which mightsuggest themselves to a skilled mechanic may be resorted towithoutdeparting from the spirit and scope of my invention. Hence I donot limit myself to the pre cise construction hereinshown; but,

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a fountain marking-brush, the combination of a barrel, areservoir-bulb removably secured thereto, a piston-rod located in saidbarrel, and a brush-bit arranged to be removably connected to saidpiston-rod, substantially as described.

2; In a fountain marking-brush, the combination of a barrel, apiston-rod operating therein, a brush-bit fitting within the barrel, andsuitable removable connections between the latter and said piston-rod,whereby the two parts turn together, substantially as described.

3. In a fountainmarking-brush, the combicured thereto, a piston-rod insaid barrel, a brush-bit, and a key running through the latter andv saidpiston-rod,whereby they are removably secured together, substantially asdescribed.

4:. -In a fountain marking-brush, thecombination of abarrel havinginterior threads, a reservoir-bulb removablysecured thereon, a

. piston-rod in said barrel, a brush-bit threaded nation of a barrel, areservoir removably se- I

